<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>测试XMLHttpRequest</title>
</head>
<body>
    <script src="js/createXMLHttpRequest对象.js"></script>
    <script>
        // 创建XMLHttpRequest
        var xhr = createXMLHttpRequest();
        
        console.log(xhr);
    </script>
</body>
</html>